Harrow



(Nb Model.)

J..P. BRADFORD.

Harrow,

No. 239,712. Patented April 5,1881.

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NJ'ETERS, PNOT0-L|1HOGRAPHER WASHINGTON n C UNITED STATES PATENT OFFICE.

JOSEPH P. BRADFORD, OF MONROE, MICHIGAN.

HARROW.

SPECIFICATION forming part of Letters Patent No. 239,712, dated April 5,1881.

Application filed January 22, 1881. (No model.)

To all whom it may concern:

Be it known that I, JOSEPH P. BRADFORD, a citizen of the United States,residing at Monroe, in the county of Monroe and State of Michigan, haveinvented certain new and useful Improvements in Harrows; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being bad to theaccompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specification.

This invention has for its object to furnish an improved sulky or 'wheelbarrow; and it consists in the construction and arrangement hereinafterdescribed, and pointed out in the claim.

In the drawings, Figure 1 is aa vertical longitudinal section. aredetail views, and Fig. 5 is an the rear of my barrow.

The axle a has afiixed to it and extended in front of it a frame, a, andit is supported by the wheels a m as shown.

I) b b are three bars,which have their forward ends pivoted to the frontcross-bar, c of the frame a, so that their rear ends will have a freevertical movement. These bars are arranged two at the ends and one atthe center of the frame, and are'made long enough to give the necessarydepth to the harrow. The rear ends of the bars I) are held together byrods b b, fixed loosely in eyebolts, as shown. Between the bars I) thereare fixed two or more rollers, c c, which are held loosely in theirbearings, so that the bars I; can rise or fall. The set of rollersarranged between any two given bars I) are provided with short verticalarms 0, which are connected at their upper ends by a horizontal rod, 0so connected that by it the simnltaneousturning of the entire set ofrollers can be effected. There is also connected to the front roller ofeach set a plan; Fig.2, Figs. 3 and 4 elevation of hand-lever, 0 bywhich the set of rollers may be turned. The lever is held by aratchetbar, 0

To the rollers 0 there are affixed the curved barrow-teeth at, soarranged that by turning the rollers 0 they may be set to cut anydesired depth into the ground. i

e is a shaft extended across above the barrow-sectio'ns, and held insuitable bearings fixed on the axle or frame of the sulky.

Projecting from the shaft e to the rear, and immediately over the bars6, are three short arms, 6, to the ends of which are fastenedconnecting-chains 0 which are fastened to the rear ends of the bars b,as shown. The shaft 6 is operated and controlled by a lever, 6 andratchet-bar e. The entire barrow is lifted by turning the shaft eforward, as indicated.

In running over the surface this barrow will have an undulatory motionby reason of the' loose manner in which its parts are connectedtogether.

The teeth can be set to cut deep into the earth or to just scrape thesurface, and they may be set to incline forward or rearward, as may bedesired.

Having thus described my invention,what I claim, and desire to secure byLetters Patent, 1s 1 In a sulky-barrow, the bars b, hinged at theirforward ends to the frame a, and held together at their rear ends by therods 1), so that they have a free and independent vertical movement, andthe sets of rollers 0, provided with barrow-teeth and journaled looselyin the bars b, and connected together by rods 0 and controlled by asuitable lever, substantially as herein set forth.

In testimony whereof I affix my signature in presence of two witnesses.

J. P. BRADFORD. Witnesses:

H. SHAW NOBLE, FRANK GRINoR.

